Results 121 to 130 of about 42,464 (282)
Anion Metathesis in Ionic Silica Nanoparticle Networks
, 2010 Metathesis reaction in acetone was performed on ionic silica networks based on imidazolium chloride bridging units. The salts investigated were NaBF₄, KPF₆ and LiN(SO₂CF₃)₂. XRD experiments and NMR analysis allowed following the anion metathesis. For all
Peterlik, Herwig +3 more
core +1 more source
Persilylated and Related Silyl Anion‐Induced Synthesis of Group 3–10 Metal–Silyl Complexes
Chemistry – A European Journal, EarlyView.Persilylated and related silyl anions serve as powerful tools for constructing metal–silyl complexes across group 3–10 elements. Their strong σ‐donating ability and steric bulk stabilize low‐coordinate, reactive species and enable unique bonding motifs.
Yusuke Sunada
wiley +1 more source
Phonological Processes in Kurdish Dialect of Sonqor Kolyaee [PDF]
مطالعات زبانها و گویشهای غرب ایران, 2018 The present article deals with the description and explanation of some of the most important productive phonological processes in Sonqor kolyaee Kurdish dialect. Deletion, Insertion, Lenition, Metathesis, Compensatory Lengthening, Insertion and Convert /
salman khanjari +1 more
doaj
The activation mechanism of Fe-based olefin metathesis catalysts
, 2014 Density functional theory calculations have been used to describe the first turnover for olefin metathesis reaction of a homogenous Fe-based catalyst bearing a N-heterocyclic carbene ligand with methoxyethene as a substrate.
Vummaleti, Sai Vikrama Chaitanya +5 more
core +1 more source
Chemistry – A European Journal, EarlyView.Frustrated Lewis Pairs featuring perchloroarylborane Lewis acid groups are found to display unprecedented H2 uptake as a function of temperature, resulting from the thermodynamic balance between H─H cleavage and noncovalent intermolecular aggregation.
Aisling F. Roper +3 more
wiley +1 more source
Anais da Academia Brasileira de CiênciasThe synthesis of 3,3-disubstituted N-methyloxindoles, starting from 3-acetyl-2-hydroxy-1-methyloxindole employing a sequential one-pot synthesis, is studied. The process involves a first alkylation in the presence of 1 equiv.
CRISTINA MORENO-CABRERIZO +4 more
doaj +1 more source
Alkene Metathesis for Transformations of Renewables
, 2018 International audienceAlkene metathesis of unsaturated bio-sourced olefins, a green and atom economic strategy, has been recently investigated with the objective of producing high-value molecules and polymer precursors.
Fischmeister, Cedric +3 more
core +1 more source
Trends and Future Directions in Organic Chemistry for Drug Discovery
Chemistry – A European Journal, EarlyView.Organic synthesis is being reshaped by the convergence of catalytic innovation, automation, artificial intelligence, and emerging therapeutic modalities. Late‐stage functionalization, photoredox and electrochemical methods, biocatalysis, flow chemistry, DELs, and proximity‐based drugs are examined as components of closed‐loop discovery.
Paweł Kozyra, Maciej Masłyk
wiley +1 more source
A Naphthalenediimide–Imidazolium Macrocycle for Orthogonal Molecular Recognition
Chemistry – A European Journal, EarlyView.One host, two recognition modes: a naphthalenediimide–imidazolium macrocycle switches between π‐driven encapsulation and hydrogen‐bonding to bind structurally diverse molecular and metal‐complex guests. ABSTRACT A naphthalenediimide‐imidazolium macrocycle is shown to function as a dual‐site supramolecular host for orthogonal molecular recognition.
Joel Martínez‐Visiedo +2 more
wiley +1 more source
Iconicity as the motivation for morphophonological metathesis and truncation in Nigerian Pidgin
Open LinguisticsWe present evidence for iconicity as the motivation for two patterns of morphophonological alternation in Nigerian Pidgin, also known as Naijá. To express an ‘unconventional positive’ in all varieties of Naijá, some nouns with the tone melodies H-L and L-
Akinbo Samuel Kayode +1 more
doaj +1 more source